Motor boat



FIG. 1 is a front perspective view of a motor boat, showing my new design;

FIG. 2 is a side elevation view thereof, the opposite side elevation being a mirror image of that shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof; and

FIG. 6 is a rear elevation view thereof. 

The ornamental design for a motor boat, as shown and described. 